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Yong Jiang,윤성호,Xiongchao Lin,Keiko Ideta,Hiromichi Takebe,Jin Miyawaki,Isao Mochida 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.4
The transformation of the Si-Al microstructures of slags, which have similar SiO2 + Al2O3 and CaO contents but different SiO2/Al2O3 ratios, was quantified using multinuclear SS-NMR. Three kinds of Si Qn microstructures (Q2, Q3, and Q4), where n denotes the number of bridging oxygen linked to other Si atoms for each Q (SiO4) unit, and one Al structure (Al (IV)) were present in both slags. The Q3 percentage in two slags was increased as increase of temperature from 1200 to 1600 8C. The transformation of Si-Al microstructures was interpreted by a hypothetic model of cristobalite cluster based on the crystal and Qn structure.